Interest, as far as its form is concerned, is the reward that the monetary owner gets from the borrower for issuing monetary funds; On the other hand, it is the price that the borrower must pay for using monetary funds. Interest is essentially a part of profit and a special form of profit transformation. \ x0d \ x0d \ This unit is often used in private lending, indicating a few thousandths. For example, 3% interest is 0.3%, and interest is calculated by time. Before calculation, it is necessary to distinguish whether it is day, month or year. \ x0d \ x0d \ Example: Li Er borrowed 65,438+0,000 yuan from Hu San, saying that he had to pay 5% daily interest for 65,438+0 months. \x0d\ So Li Er means to lend Hu San 1 0,000 yuan and give Hu San 0.5% daily interest. 1 month later, he will add interest to Hu San's principal * * * 1 0,000 * 0.5% * 30 =165438+.